/Engine/Source/Runtime/MovieScene/Public/Channels/MovieSceneChannelTraits.h
Add a key to a channel, or update an existing key if one already exists at this time
A handle to the key that was added
namespace UE { namespace MovieScene { template<typename ChannelType, typename ValueType> [FKeyHandle](API\Runtime\Engine\Curves\FKeyHandle) UE::MovieScene::AddKeyToChannel ( ChannelType * InChannel, [FFrameNumber](API\Runtime\Core\Misc\FFrameNumber) InTime, ValueType && Value, EMovieSceneKeyInterpolation Interpolation ) } }